Re: add AVX2 support to simd.h

From: John Naylor <johncnaylorls(at)gmail(dot)com>
To: Nathan Bossart <nathandbossart(at)gmail(dot)com>
Cc: Ants Aasma <ants(at)cybertec(dot)at>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: add AVX2 support to simd.h
Date: 2024-01-03 14:13:52
Message-ID: CANWCAZavit+92_2E4K04RD7ErzY2T1Cc=3tysLYLk17t_GnM-g@mail.gmail.com
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On Tue, Jan 2, 2024 at 11:11 PM Nathan Bossart <nathandbossart(at)gmail(dot)com> wrote:
>
> Perhaps I was too optimistic about adding support for newer instructions...
>
> I'm tempted to propose that we move forward with this patch as-is after
> adding a buildfarm machine that compiles with -mavx2 or -march=x86-64-v3.

That means that we would be on the hook to fix it if it breaks, even
though nothing uses it yet in a normal build. I have pending patches
that will break, or get broken by, this, so minus-many from me until
there is an availability story.

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